./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77987d39218daa3d8ca19fe9337f6493b276d704fa95c2d6fb7800ec30efdcea --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:03:37,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:03:37,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:03:38,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:03:38,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:03:38,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:03:38,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:03:38,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:03:38,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:03:38,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:03:38,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:03:38,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:03:38,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:03:38,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:03:38,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:03:38,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:03:38,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:03:38,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:03:38,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:03:38,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:03:38,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:03:38,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:03:38,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:03:38,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:03:38,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:03:38,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:03:38,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:03:38,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:03:38,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:03:38,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:03:38,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:03:38,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:03:38,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:03:38,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:03:38,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:03:38,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:03:38,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:03:38,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:03:38,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:03:38,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:03:38,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:03:38,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 17:03:38,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:03:38,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:03:38,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:03:38,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:03:38,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:03:38,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:03:38,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:03:38,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:03:38,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:03:38,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:03:38,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:03:38,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:03:38,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:03:38,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:03:38,191 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:03:38,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:03:38,191 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:03:38,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:03:38,192 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:03:38,192 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:03:38,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:03:38,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:38,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:03:38,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:03:38,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:03:38,193 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:03:38,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:03:38,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:03:38,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77987d39218daa3d8ca19fe9337f6493b276d704fa95c2d6fb7800ec30efdcea [2022-10-17 17:03:38,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:03:38,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:03:38,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:03:38,518 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:03:38,518 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:03:38,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c [2022-10-17 17:03:38,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/data/d9d526169/7320745a550e4981aebe8686dcd7fc4b/FLAGb298fa78d [2022-10-17 17:03:39,048 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:03:39,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c [2022-10-17 17:03:39,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/data/d9d526169/7320745a550e4981aebe8686dcd7fc4b/FLAGb298fa78d [2022-10-17 17:03:39,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/data/d9d526169/7320745a550e4981aebe8686dcd7fc4b [2022-10-17 17:03:39,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:03:39,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:03:39,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:39,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:03:39,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:03:39,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdaa689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39, skipping insertion in model container [2022-10-17 17:03:39,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:03:39,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:03:39,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c[489,502] [2022-10-17 17:03:39,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:39,738 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:03:39,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c[489,502] [2022-10-17 17:03:39,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:39,796 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:03:39,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39 WrapperNode [2022-10-17 17:03:39,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:39,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:39,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:03:39,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:03:39,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,845 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2022-10-17 17:03:39,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:39,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:03:39,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:03:39,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:03:39,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:03:39,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:03:39,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:03:39,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:03:39,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:39" (1/1) ... [2022-10-17 17:03:39,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:39,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:03:39,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:03:39,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886ca73d-278e-4c0a-a340-62bd67699003/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:03:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:03:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 17:03:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 17:03:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:03:39,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:03:39,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:03:39,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 17:03:39,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 17:03:40,016 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:03:40,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:03:40,257 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:03:40,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:03:40,333 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:03:40,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:40 BoogieIcfgContainer [2022-10-17 17:03:40,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:03:40,337 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:03:40,337 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:03:40,348 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:03:40,348 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:40" (1/1) ... [2022-10-17 17:03:40,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:03:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2022-10-17 17:03:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2022-10-17 17:03:40,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:03:40,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:40,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:03:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:40,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2022-10-17 17:03:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-10-17 17:03:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:03:40,620 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:03:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:40,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 35 transitions. [2022-10-17 17:03:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-10-17 17:03:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:03:40,948 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:41,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-17 17:03:41,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:03:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 31 states and 50 transitions. [2022-10-17 17:03:41,506 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2022-10-17 17:03:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 17:03:41,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:41,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:41,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-17 17:03:41,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:41,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:03:42,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 59 transitions. [2022-10-17 17:03:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2022-10-17 17:03:42,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 17:03:42,474 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:42,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-17 17:03:42,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:42,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 17:03:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 70 transitions. [2022-10-17 17:03:43,992 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 70 transitions. [2022-10-17 17:03:43,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 17:03:43,994 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:44,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:03:44,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 17:03:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 72 transitions. [2022-10-17 17:03:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions. [2022-10-17 17:03:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:03:44,188 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:44,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:44,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:44,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-17 17:03:44,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 17:03:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 48 states and 97 transitions. [2022-10-17 17:03:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 97 transitions. [2022-10-17 17:03:46,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:03:46,196 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:46,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:46,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 17:03:46,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 17:03:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 58 states and 146 transitions. [2022-10-17 17:03:48,603 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 146 transitions. [2022-10-17 17:03:48,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 17:03:48,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:48,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:48,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-17 17:03:48,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:48,803 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-17 17:03:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 60 states and 150 transitions. [2022-10-17 17:03:49,468 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 150 transitions. [2022-10-17 17:03:49,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 17:03:49,470 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:49,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:49,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 17:03:49,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 17:03:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 64 states and 166 transitions. [2022-10-17 17:03:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 166 transitions. [2022-10-17 17:03:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:03:50,877 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:50,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:03:50,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-17 17:03:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:56,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 74 states and 204 transitions. [2022-10-17 17:03:56,914 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 204 transitions. [2022-10-17 17:03:56,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:03:56,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:56,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:03:56,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 17:03:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 75 states and 206 transitions. [2022-10-17 17:03:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 206 transitions. [2022-10-17 17:03:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 17:03:58,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:03:58,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:03:58,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:03:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 17:04:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:04:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 77 states and 211 transitions. [2022-10-17 17:04:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 211 transitions. [2022-10-17 17:04:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 17:04:00,748 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:04:00,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:04:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:04:00,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 17:04:00,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:04:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 17:04:05,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:04:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 80 states and 223 transitions. [2022-10-17 17:04:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 223 transitions. [2022-10-17 17:04:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 17:04:05,310 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:04:05,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:04:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:04:05,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:04:05,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:04:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-17 17:04:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:04:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 85 states and 248 transitions. [2022-10-17 17:04:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 248 transitions. [2022-10-17 17:04:10,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 17:04:10,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:04:10,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:04:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:04:11,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-17 17:04:11,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 17:04:11,483 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.